c++ Programming Glossary: pa

http://stackoverflow.com/questions/2157104/c-pointer-multi-inheritance-fun

A class B class C public A public B C c C pc c B pb c A pa c does pa point to a valid A object does pb point to a valid.. B class C public A public B C c C pc c B pb c A pa c does pa point to a valid A object does pb point to a valid B object.. to a valid A object does pb point to a valid B object does pa pb Furthermore does pc C pa pc C pb Thanks c multiple inheritance..

Interpretation of int (*a)[3]

http://stackoverflow.com/questions/2250397/interpretation-of-int-a3

though . So you should be able to understand int a 3 int pa a But for completeness' sake in the assignment the name a is.. p foo 0 The above is no different in form to the int pa a line because the types of a and of foo 0 are the same. So.. we need q to be a pointer to an array 3 of int int q 3 The parentheses around q are needed because binds more tightly than..

C++ STL: Array vs Vector: Raw element accessing performance

http://stackoverflow.com/questions/2740020/c-stl-array-vs-vector-raw-element-accessing-performance

small I have already optimized and minimized every other part of the VM which executes the opcodes c stl arrays vector.. object i.e. a run time pointer value std vector int v int pa ... v i pa i Both have the same access time However the access.. a run time pointer value std vector int v int pa ... v i pa i Both have the same access time However the access time to..

Why isn't operator overloading for pointers allowed to work?

http://stackoverflow.com/questions/6171630/why-isnt-operator-overloading-for-pointers-allowed-to-work

introduced primarily to support operator overloading. C passes every function argument by value and where passing an object.. C passes every function argument by value and where passing an object by value would be inefficient or inappropriate.. value would be inefficient or inappropriate the user can pass a pointer. This strategy doesn 脌 work where operator overloading..

Why aren't my include guards preventing recursive inclusion and multiple symbol definitions?

http://stackoverflow.com/questions/14909997/why-arent-my-include-guards-preventing-recursive-inclusion-and-multiple-symbol

A_H b.h #ifndef B_H #define B_H #include a.h struct B A pA #endif B_H main.cpp Good luck getting this to compile..... of A no need to #include a.h struct A struct B A pA #endif B_H Your main.cpp will now certainly compile. A couple..

Can placement new for arrays be used in a portable way?

http://stackoverflow.com/questions/15254/can-placement-new-for-arrays-be-used-in-a-portable-way

20 char pBuffer new char NUMELEMENTS sizeof A A pA new pBuffer A NUMELEMENTS With VC pA will be four bytes higher.. sizeof A A pA new pBuffer A NUMELEMENTS With VC pA will be four bytes higher than pBuffer printf Buffer address.. pBuffer printf Buffer address x Array address x n pBuffer pA Debug runtime will assert here due to heap corruption delete..

Difference between A* pA = new A; and A* pA = new A();

http://stackoverflow.com/questions/1581763/difference-between-a-pa-new-a-and-a-pa-new-a

between A pA new A and A pA new A in C what is the exact difference between.. between A pA new A and A pA new A in C what is the exact difference between both following.. between both following dynamic object creations A pA new A A pA new A I did some tests but it seems that in both..

Why do we have reinterpret_cast in C++ when two chained static_cast can do its job?

http://stackoverflow.com/questions/5025843/why-do-we-have-reinterpret-cast-in-c-when-two-chained-static-cast-can-do-its-j

char a choice 2 Both work fine. convert back A pA static_cast A static_cast void buffer choice 1 A pA reinterpret_cast.. back A pA static_cast A static_cast void buffer choice 1 A pA reinterpret_cast A buffer choice 2 Even this works fine So why.. buffer reinterpret_cast char a choice 2 convert back A pA any_cast A buffer choice 1 A pA reinterpret_cast A buffer choice..

Why constructor is not called for given casting operator?

http://stackoverflow.com/questions/6120240/why-constructor-is-not-called-for-given-casting-operator

called for given casting operator struct A struct B B A pA B operator A pA return this template typename T struct Wrap.. casting operator struct A struct B B A pA B operator A pA return this template typename T struct Wrap T x operator T return..